Combined illuminating gas and vapor burner.



l v F. & A. H MUMILLAN.' QOMBINBD ILLUmNATING GAS AND vAPoB BURNER.

vAllL'IATIOl FILED KAY B6, 1906..

905,738, BatenteaDe@.1,-19os.

UNITED STATES PATENT OFFICE.

FRANK MCMILLAN AND ARTHUR H. MCMILLAN, OF CHICAGO, ILLINOIS, ASSIGNORSTO i CHARLES W. BELL, OF JACKSON, MICHIGAN.

Specification of Letters Patent.

Patented Dec. 1, 1908.

Application led May 26, 1906. Serial No. 318,869.

I To alt 'whom it may concern:-

Be it known that we, FRANK MCMILLAN and ARTHUR H. MCMILLAN, citizens ofthe United States of America, and residents of Chicago, in the county ofCook and State of Illinois, have invented certain new and usefulImprovements in a Combined Illuminating Gas and Vapor Burner, of whichthe following is a specication.

This invention relates to a combined illuminating gas and hydrocarbonvapor burner,

and has for its object to provide a simf ple and etlicient structuralformation and combination of parts, whereby either ordinary illuminatinggas, or hydrocarbon vapor can be used alternately in the burner, and

which is self contained so that ordinary illuminating gas can beinitially used to properly heat the vapor generating tube after'` whichthe supply of such gas can be shut oftI and the illumination continuedby the vapor generated by the burner as needed, all as will hereinaftermore fully appear.

In the accompanying drawings Figure 1 is a side elevation of a burnerembodying the present invention. Fig. 2 is an enlarged detail section ofthe same, on line :v -m, Fig. 1. Fig. 3 is a similar' view of the sameon line :1f- Fig. 2. Fig. 4 is a detail side elevation of the vaporgenerating tube.

Similar numerals of reference indicate like parts in the several views.

Referring to the drawings, 1 is the central main tube of the burner, theupper open end of which is adapted to receive and support the usualglobe or chimney supporting gallery 2 as well as the perforateddischarge head 3 of an incandescing mantle through which the combustiontakes place.

4 is a socket piece, formedwith a gas passage and secured in the lowerend of theV main tube l, and provided with a screw threaded recess forattachment in turn to the supply nipple of an ordinary gas fixture. 5 isa gas tube connected at its lower end with the socket piece 4 andextending up a distance inside the main tube 1, and adapted to conductordinary illuminating gas passing through the gas passage to thedischarge head 3 of the burner.

6 are a series of lateral openings in the main tube 1, midway its heightand adjacent to the discharge end of tbe gas tube, for the admission. ofair into the interior of the 'main tube.v

T is a revoluble sleeve fitting the outside of the main tube 1, andformed with a series of lateral openings 8, corresponding to the seriesof lateral openings 6 in the main tube l, which in a rotary adjustmentof said sleeve are adapted, in connection with the lateral openings ofthe main tube l, to increase or diminish the amount of air admitted tothe interior of said main tube and as may be requiredto produce propercombustion.

9 is an open bottom bell shaped shield surrounding the lateral openingsand secured at its narrow upper end to the revoluble sleeve 7,immediately above the lateral openings of the same, and adapted toprotect the. said openings from drafts of wind blowing laterally againstthe burner, as well as afford a convenient means for the manualadjustment of said sleeve.

10 is a vapor generating tube, preferably of an inverted U form, andarranged vertically at one side of the main tube 1, with its upper endin adjacent relation to the dis charge head 3, and incandescing mantleof the burner.

11 is a clip or bracket for connecting the vapor generating tube and themain tube in fixed and proper relation.

12 is a regulating valve, preferably of the needle type, arranged atJthe inlet end of the vapor generating tube 10, and adapted to regulatethe supply of gasolene or other hydrocarbon fluid to said generatingtube.

13 is a depending angle tube connected at one end to the dependingoutlet end of the vapor generating tube 10, and at its other end to thevapor discharge nozzle or head now to be described.

14 is the vapor discharge nozzle or head arranged centrally within themain tube 1, Y

and secured in place therein by a lateral eX- tension 15 fitting alateral opening in said tube, and provided with an attaching nut on itsouter end, as shown in Fig. 3. Such discharge nozzle is formed with avertical discharge orifice, into which the vapor is introduced laterallyby the angle tube 13, which to this end is connected to the saiddischarge nozzle midway of its height.

16 is a needle valve moving in the vertical orifice of the dischargenozzle 14, and adaptd ed in its vertical adjustment to regulate the fiowof` vapor from said discharge nozzle.

17 is a stuiingbox at the lower end of the discharge nozzle 14, for themovement of said needle valve in a vapor tight manner.

18 is a lever pivoted at one end in an orifice lb in the wall of themain tube 1 and extending out laterally from said main tube,

through a lateral opening 1a for convenient operation; such lever isconnected to the lower end of the needle valve 16, and is adapted in itsmanual adjustment to effect a corresponding adjustment of said needlevalve.

It will be observed that the illui'ninating gas tube 5 and thehydrocarbon vapor discharge nozzle 14 are .arranged side by side withinthe centi'al main tube with their rdischarge ends adjacent to thelateral openings of the central main tube.

Having thus fully described my said :invention, what I claim as new anddesire to secure by Letters Patent, is

l. A combined illuminating gas and hydrocarbon vapor burner comprising,a central main tube provided with lateral openings for admitting air,means for controlling said lateral openings, a socket piece formed withan illuminating gas passage and closing the lower end of said main tubeand adapted for attachment to the .outlet nipple of an illuminating gasfixture, an illuminating gas discharge tube communicating with said gaspassage and connected to said socket piece and extending verticallywithin the main tube, to a point adjacent to the lateral openings, avapor generating tube of inverted U-shape, provided Ywith a dependingangle tube at its outlet end entering the side of the main tube and acentral discharge nozzle supported on the angle tube and communicatingtherewith, arranged within the main tube and alongside of which the gasdischarge tube is positioned.

2. A combined illuminating gas and hydrocarbon vapor burner comprising alcentral main tube provided with lateral openings for admitting air, arevoluble sleeve on the main tube formed with lateral openings foradmitting air and adapted to register with the lateral openings ot saidmain tube and control the admission of air to the lateral openings ofthe main tube, a socket piece formed with an illuminating gas passageand closing the lower end of said main tube and adapted for attachmentto the outlet nipple of an illuminating lgas fixture, an illuminatinggas discharge tube communicating with said gas passage and connected tosaid socket piece and extending vertically within the main tube to apoint adjacent to the lateral openings, a vapor generating tube ofinverted U-shape provided with a depending angle tube at its outlet endentering the side of the main tube, 4and Aa central discharge nozzle,supported :on the angle tube and communicating therewith, ar-

ranged withinthe main tube and alongside of which the gas discharge tubeis positioned.

3. A combined illuminating gas and hydrocarboii vapor burner comprising,a central main tube provided with lateral openings for admitting air, arevoluble sleeve on the main tube formed with lateral openings foradmitting air and adapted to register with the lateral openings of saidmain tube and control the admission of air to the lateral openings ofthe main tube, a bell shaped shield, surrounding the lateral openings,Aand secured to the revoluble sleeve, a socket piece yformed with anilluminating gas passage and closingl the lower end of said main tubeand adapted for attachment to the out-let nipple of an illuminating gasfixture, an illuminating gas discharge tube communicating with said gaspassage and connected -to said socket piece and extending verticall)Twithin the main tube to a point adjacent to the lateral openings, avapor generating tube ot inverted U-shape pi'ovided with a dependingangle tube at its outlet end, entering the side of the main tube and acentral discharge nozzle, supported yon the angle tube and communicatingtherewith, arranged within the main tube and alongside of which the gasdischarge tube is positioned.

4t. A combined illuminating gas and h fdrocarbon vapor burnercomprising, a central main tube provided with lateral openings ;toradmitting air, means for controlling said lateral openings, a socketpiece formed with an illuminating gas passage and closing the lower endof said main tube and adapted for attachment to the outlet nipple of anilluminating gas iixture, an illuminating gas discharge tubecomunicating with said gas passage and connected to said socket pieceand extending ,vertically within :the main tube to a point adjacent tothe lat- .eral openings, a vapor generating tube of 1nverted U-shapeprovided with a depending angle tube at its outlet end entering the sideof the main tube, a central discharge nozzle, supported on the angletube and communiyeating therewith, arranged within the main tube and.alongside of which the gas discharge tube is positioned, a needle valvearranged ,axially in the discharge nozzle, and means for operating saidneedle valve to regulate the discharge from said discharge nozzle.

A combined illuminating gas and hydrocarbon Ivapor burner comprising, acentral main tube provided with lateral openings :tor admitting air, arevoluble sleeve on .the main. tube formed with lateral openings for.admitting air and adapted to register with the lateral openings of saidmain tube and control the admission of air, a Socket piece formed withan illuminating gas passage and closing the lower end of said main tubeand adapted for attachment to the outlet nipple of an illuminating gasfixture, an illuminating gas discharge tube communicating' with said gaspassage and connected to said socket piece and extending verticallywithin the main tube to a point adjacent to the lateral openings, avapor generating tube of inverted U-shape provided with a dependingangle tube at its outlet end entering the side of the main tube, acentral discharge nozzle supported on the angle tube and communicatingtherewith, arranged within the main tube and alongside of which the gasdischarge tube is positioned, a needle valve arranged axially in thedischarge nozzle, and means for operating said needle valve to regulatethe discharge from said discharge nozzle.

6. A combined illuminating gas and hydrocarbon vapor burner comprising,a central main tube provided with lateral openings for admitting air, arevoluble sleeve on the main tube formed with lateral openings foradmitting air and adapted to register with the lateral openings of themain tube and control the admission of air, a bell shaped shield,surrounding the lateral openings, and secured to the revoluble sleeve, asocket piece formed with an illuminating gas passage and closing thelower end of said main tube and adapted for attachment to the outletnipple of an illuminating gas fixture, an illuminating gas dischargetube communicating with the gas passage and connected to said socketpiece and extending vertically within the main tube to a point adjacentto the lateral openings, a vapor generating tube of inverted U-shapeprovided with a depending angle tube at its outlet end entering the sideof the main tube, a central discharge nozzle supported on the angle tubeand communicating therewith, arranged within the main tube, andalongside of which the gas discharge tube is positioned, a needle valvearranged axially in the discharge nozzle, and means for operating saidneedle valve to regulate the discharge from said discharge nozzle.

7. A combined illuminating gas and hydrocarbon vapor burner comprising,a central main tube provided with lateral openings for admitting air,means for controlling said lateral openings, a socket piece formed withan illuminating gas passage and closing the lower end of said main tubeand adapted for attachment to the outlet nipple of an illuminating gasfixture, an illuminating gas discharge tube communicating with the gaspassage and connected to said socket piece and extending verticallywithin the main tube to a point adjacent to the lateral openings, avapor generating tube of inverted U-shape provided with a dependingangle tube at its outlet end entering the side of the main tube, acentral discharge nozzle, supported on the angle tube and communicatingtherewith, arranged within the main tube and alongside of which the gasdischarge tube is positioned, a needle valve arranged axially in thedischarge nozzle, and a lever pivoted to the main tube and operativelyconnected to the lower end of said needle valve.

S. A combined gas and illuminating and hydrocarbon vapor burnercomprising, a central main tube provided with lateral openings foradmitting air, a revoluble sleeve on the main tube formed with lateralopenings for admitting air and adapted to register with the lateralopenings of said main tube and control the admission of air,

a socket piece formed with an illuminating gas passage and closing thelower end of' said main tube and adapted for attachment to the outletnipple of an illuminating gas fixture, an illuminating gas dischargetube communicating with gas passage and connected to said socket pieceand extending vertically within the main tube to a point adjacent to thelateral openings, a vapor generating tube of inverted U-shape providedwith a depending angle tube at its outer end entering the side of themain tube, a central discharge nozzle, supported on the angle tube andcommunicating therewith, arranged within the main tube and alongside ofwhich the gas discharge tube is positioned, a needle valve arrangedaxially in the discharge nozzle, and a lever pivoted to the main tubeand operatively connected to the lower end of said needle valve.

9. A. combined illuminating gas and hydrocarbon vapor burner comprising,a cene f tral main tube provided with lateral openings for admittingair, a revoluble sleeve on the main tube formed with lateral openingsfor admitting air and adapted to register with the lateral openings ofsaid main tube and control the admission of air, a bell shaped shieldsurrounding the lateral openings and secured to the revoluble sleeve, asocket piece formed with an illuminating gas 'passage and closing thelower end of said main tube and adapted for attachment to the outletnipple of an illuminating gas fixture, an illuminating gas dischargetube communicating with the gas passage and connected to said socketpiece and extending vertically within the main tube to apoint adjacentto the lateral openings, a vapor generating tube of inverted U-shapeprovided with a depending angle tube at its outer end entering the sideof the main tube, a central discharge nozzle, supported on the angletube and communicating therewith, arranged within the main tube andill() llt) alongside of which the gas discharge tube is positioned, aneedle valve arranged axially in the discharge nozzle, and a leverpivoted to the main tube and operatively connected to the lower end ofsaid needle valve.

10. A combined illuminating gas and hydrocarbon vapor' burnercomprising, a central main tube provided with lateral openings foradmitting air, means for controlling said lateral openings, a socketpiece formed With an illuminating gas passage and closing the lower endof said main tube and adapted for attachment to the outlet nipple of anilluminating gas lixture, an illuminating gas discharge tubecommunicating With the gas passage and connected to said socket pieceand extending vertically Within the main tube to a point adjacent to thelateral openings, a vapor generating tube of inverted U-shape providedwith a depending angle tube at its outer end entering the side of themain tube, and a central discharge nozzle with Which the angle tubecommunicates, at one side and provided Wit-ha lateral extension at theother side by Which it is secured to the main tube and alongside ofWhich the gas discharge tube is positioned.

Signed at Chicago, Illinois, this 22nd day ol' May 1906.

FRANK lvoldlLLAN. ARTHUR H. MGMILLAN.

Witnesses Y RQBERT BURNS, W. H. HOLMES.

